diff --git a/app/build.gradle b/app/build.gradle
index 3ea2d31..1b439d5 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,13 +7,13 @@ plugins {
 }
 
 android {
-    compileSdkVersion 30
+    compileSdkVersion 31
     buildToolsVersion "30.0.3"
 
     defaultConfig {
         applicationId "org.matomocamp.fosdem"
         minSdkVersion 17
-        targetSdkVersion 30
+        targetSdkVersion 31
         versionCode 1700205
         versionName "2.0.5"
         // Supported languages
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 47e2fe2..5dcbbfd 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -32,7 +32,8 @@
         <activity
             android:name=".activities.MainActivity"
             android:label="@string/app_name"
-            android:theme="@style/AppTheme.TranslucentStatusBar">
+            android:theme="@style/AppTheme.TranslucentStatusBar"
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
@@ -55,6 +56,7 @@
         <activity
             android:name=".activities.EventDetailsActivity"
             android:label="@string/event_details"
+            android:exported="true"
             android:parentActivityName=".activities.TrackScheduleActivity">
             <intent-filter>
                 <action android:name="android.nfc.action.NDEF_DISCOVERED" />
@@ -70,6 +72,7 @@
         <activity
             android:name=".activities.SearchResultActivity"
             android:label="@string/search_events"
+            android:exported="true"
             android:launchMode="singleTop">
             <intent-filter>
                 <action android:name="android.intent.action.SEARCH" />
@@ -86,6 +89,7 @@
         <activity
             android:name=".activities.ExternalBookmarksActivity"
             android:label="@string/external_bookmarks_title"
+            android:exported="true"
             android:parentActivityName=".activities.MainActivity">
             <intent-filter>
                 <action android:name="android.nfc.action.NDEF_DISCOVERED" />
@@ -103,6 +107,7 @@
             android:theme="@style/AlertDialogTheme" />
         <activity
             android:name=".activities.SettingsActivity"
+            android:exported="true"
             android:label="@string/settings">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />